JPH0591811A - Harvester - Google Patents

Abstract

PURPOSE:To open the rear part of an apparatus for treating leaves and stems and facilitate maintenance, inspection and setup of the apparatus for treating the leaves and stems by rotatably supporting a lifting conveyor through the rotation central shaft at the tip of a supporting rod with a cylinder device. CONSTITUTION:A mast 15 having a lifting conveyor 19 is rotatably supported through a rotation central shaft 14 at the tip of a supporting rod 13. A load receiving carrier 30 is fixed on the mast with a locking device 50 and a locking device 59 is released. In this state, the mast is rotated upward with a cylinder device 38 to open the rear part of the apparatus 4 for treating leaves and stems.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvester, for example, digging a harvested product such as an onion, transporting it while sieving the soil, removing the foliage from the harvested product, and then placing the harvested product in a container. Regarding what to receive.

[0002]

2. Description of the Related Art Conventionally, as a harvester of this type, for example, as described in Japanese Utility Model Publication No. 62-28819, an onion is conveyed backward to the upper part of the harvester main body, and the foliage of this onion is conveyed. A cutting device equipped with a cutter for cutting the cutting edge is provided at the rear end, and a lifting conveyor for lifting the onion carried out from the cutting device in the vicinity of the rear end of the cutting device is vertically fixed. 2. Description of the Related Art There is known a configuration in which a lifting device for supporting a container for receiving onions delivered from a lifting conveyor is supported at a rear portion so as to be lifted and lowered.

[0003]

In the structure described in the above publication, since the lifting conveyor is vertically erected and fixed near the rear end of the cutting device, the lifting conveyor and the cutter of the rear end of the cutting device are installed. Since the distance between the cutting device and the cutting device is narrow, it is extremely difficult and time-consuming to perform maintenance, inspection, and maintenance of the cutting device, especially the cutter at the rear end, and the cutter is a consumable item. It is necessary to replace the cutter depending on the frequency of use, but since the distance between the lifting conveyor and the cutter at the rear end of the cutting device is narrow, it may be difficult for the operator to reach the cutter that needs to be replaced. Many cutters are troublesome to replace, which is not preferable in terms of work efficiency, and there is a problem in that the replacement is dangerous.

Therefore, the present invention has been made in view of the above problems, and in the maintenance work of the foliage processing device such as exchanging the cutter of the foliage processing device, the rear part of the foliage processing device is largely opened to make the work space. -It is possible to secure
It is an object of the present invention to provide a harvester that can easily and efficiently perform maintenance / inspection / maintenance work of a foliage processing device including replacement of a cutter.

[0005]

SUMMARY OF THE INVENTION The harvester of the present invention comprises a movable harvester main body, a harvester provided at the upper part of the harvester main body for conveying the harvest backward, and cutting the foliage at the rear end. A foliage processing device equipped with a cutter, and left and right support rods erected opposite to the left and right parts of the harvester body,
Left and right masts supported on the upper ends of the left and right support rods respectively via a rotation center shaft so as to be rotatable in the vertical direction, and provided between the inner parts of the left and right masts and carried out from the foliage treatment device. Lifting conveyor for lifting a harvested product, a loading platform that is vertically movable on the left and right masts and that receives harvested products carried out from the lifting conveyor, and a cylinder device that raises and lowers the loading platform along the mast. When,
A first locking device that is provided on the elevating part of the cargo receiving stand and locks the cargo receiving stand with respect to the mast, and the lower ends of the left and right masts that are provided at the left and right parts of the harvester main body are detachable from the harvester main body. And a second locking device that locks freely.

[0006]

In the harvesting machine of the present invention, as the harvesting machine is advanced, the harvested products sequentially excavated from the field are sequentially carried into the foliage processing device and conveyed backward by this foliage processing device. The foliage of each onion that has been conveyed to the rear end is sequentially cut by a cutter. In addition, the onion from which the foliage has been removed is sequentially loaded into the lifting conveyor from the unloading end of the foliage processing device and lifted up, and is sequentially loaded into the container supported by the load receiving tray from the unloading end to be received. ..
In this case, the container is supported by the load receiving platform pushed up along the mast by the cylinder device in a state of being brought close to the carry-out end of the lifting conveyor, so that the difference in collection and collection of the harvested product with respect to the container is small, and the harvested product is Received without damage. Then, when a predetermined amount of harvested product is stored in the container, the cylinder-device is operated to lower the load receiving base along the left and right masts, so that the container supported by the load receiving base can store the harvested product. Set to state. Therefore, by sequentially lowering the cargo receiving tray in accordance with the storage state of the harvested product in the container, the harvested product is received in the container in a state in which the difference in receiving and receiving is small and is sequentially stored without damaging the harvested product.

Thus, when the container containing the harvested products is unloaded, the container-supporting container is lowered by the operation of the cylinder device along the left and right masts to a predetermined unloaded position. , Containers can be easily unloaded from the loading platform. Next, in the case of replacing the cutter at the rear end portion of the foliage processing device, for example, the foliage processing device, the first locking device is actuated, and the load receiving platform is moved along the mast with this first locking device. While locking the mast so that it does not rise, the second locking device is activated, and the second locking device unlocks the lower end portions of the left and right masts from the harvester body. Then, when the cylinder-device is operated and the piston rod is extended, the left and right masts that lock the load receiving platform rise upward around the center axis of rotation of the upper ends of the left and right support rods provided in the harvester body. Along with the rotation, the lifting conveyors provided between the inner ends of the left and right masts are likewise lifted and raised, and when these are lifted and turned to greatly open the rear part of the foliage processing device, the cylinder device Stop the operation of. As a result, a wide space where the operator can easily work is secured in the rear part of the foliage processing device, and the cutter replacement work of the foliage processing device is facilitated.

[0008]

[Embodiment] Next, the construction of an embodiment of the present invention will be described.

1 is a harvester main body, and this harvester main body 1 is
A main frame 2 is provided, a crawler 3 is provided on the lower side of the main frame 2, and the main frame 2 is provided.
A foliage processing device 4 is provided between the opposite left and right side frames 2a provided at the upper part of the.

This foliar treatment device 4 is a roller 5 arranged in parallel as a set of pairs which sequentially aligns the foliage of the onion downward while conveying the onion as a harvest backward.
a plurality of roller groups 5 consisting of a and 5b, and a pair of rollers 5a and 5b of each roller group 5 at the rear end portions thereof, the rear end portion of one of the rollers 5a. A rotatable annular rotary body 7 having a conical guide body 6 disposed on the upper part thereof, and a conical guide body 8 disposed on the rear end of the other roller 5b. And a rotatable disc-shaped cutter 9 having an upper part.

The cutters 9 of each set are detachably attached to the support shafts 10 of the respective guide bodies 8 and the outer peripheral portion of the rotary body 7 on one side of each set. Are brought into contact with each other and are rotated together by the rotation of the rotating body 7. The pair of rollers 5a and 5b of the roller group 5 are rotated inward in the opposite directions, and the onions are directed downward while conveying the onions backward. Are arranged in sequence. In addition, a shunt 11 is provided at the rear side of each of the cutters 9 to guide the onion to the rear.

Also, the main frame 2 has the crawler 3
And a drive unit (not shown) for outputting the output to each of the roller groups 5 of the foliage processing apparatus 4 to drive them. In addition, from the front side portion to the front portion of the main frame 2, from the front portion to the rear main frame 2, the grounding wheel, the excavated body, the conveyor, and the foliage treatment device 4 from the carry-out end portion of the conveyor. The shoots that guide the onions are lined up. The conveyor is rotated by the drive device.

Next, left and right side frames on the main frame 2
At the rear end of 2a, a bracket 12 is integrally provided so as to project upward, and the left and right brackets 12 are respectively provided with lower ends of the left and right support rods 13 slightly inclined rearward and upward. The right and left support rods 13 are fixedly attached to each other and erected.
The left and right fixing masts are attached to the upper end of the
A mounting frame 16 of 15 is pivotally mounted in a vertically rotatable manner.
The left and right mounting frames 16 are fixed to the vicinity of the upper ends of the left and right masts 15 and project toward the supporting rods 13. The protruding ends of the left and right mounting frames 16 are the left and right supporting rods 13. Is rotatably attached to the upper end of each of them via the rotation center shaft 14.

The left and right fixing masts 15 are long and parallel to each other in the up-down direction, and both ends of a horizontal support frame 17 which is long in the left-right direction are integrally formed between the upper ends thereof. Is stuck to. Also, the left and right fixing masts 15
A plurality of connecting metal fittings 18 are fixed to the upper and lower parts inside the inner part of each of them, and the on / off connecting metal fittings 18 which are opposed to each other are used to lift the onion carried out from the carry-out end portion of the foliage processing device 4. A conveyor 19 is connected and supported.
This lifting conveyor 19 has opposite conveyor frames 20 connected to the left and right upper and lower connecting fittings 18 on the left and right parts, and sprockets 21 are fixed on the left and right parts between the upper ends of the left and right conveyor frames 20. The drive shaft 22 is rotatably mounted on the left and right conveyor frames 20.
A rotary shaft 24 having sprocket 23 fixed to the left and right parts is rotatably mounted between the lower ends of the sprocket 23, and between the sprocket 21 at the upper left and right parts and the sprocket 23 at the lower left and right parts,
An endless traveling body 25, which is formed by arranging a number of horizontal rods side by side with a gap for sifting the soil between the left and right endless chains, is rotatably suspended. On the horizontal rod at the position, a locking horizontal rod is provided so as to project and lock the onion.

Next, guide rollers are rotatably mounted on the upper and lower parts of the left and right fixing masts 15 through a plurality of roller shafts, and the left and right fixing rollers are fixed by the left and right upper and lower guide rollers. An elevating mast 26 having a U-shaped cross section is inserted into the mast 15 so as to be vertically movable.
The connecting rods 27 are horizontally fixed between the upper end portions of the 26 and between the lower end portions thereof. Further, an upper end portion of a vertical portion of a bracket 29 having an L-shape in a side view is vertically rotatably mounted on the outer portion near the upper end portions of the left and right lifting masts 26 so as to be vertically rotatable. The upper end of the load receiving base 30 is integrally fixedly supported on the end of the bracket 29 in the horizontal portion.

The load receiving base 30 has underframes 31 formed in an L shape in a side view on the left and right sides, and the upper end of a vertical portion 32 of the underframes 31 on the left and right sides is attached to the brackets 29 on the left and right sides. It is integrally fixed and supported, and the left and right vertical parts
32 is connected and supported by a plurality of horizontal rods 33 at the upper and lower portions. Then, the container 35 is supported by the left and right vertical portions 32 and the left and right fork-shaped horizontal portions 34 protruding rearward from the lower end portion of the vertical portions 32.

A pair of mounting pieces 36 are provided so as to be opposed to each other on the front side portions near the upper ends of the left and right lifting masts 26, and a first shaft is provided between the pair of mounting pieces 36 via a support shaft 37. The upper end of a piston rod 39 of the cylinder device 38 is rotatably supported, and the lower end of the first cylinder device 38 is attached to a mounting frame 41 projecting from the rear end of the frame 40 of the crawler 3. On the spindle
It is pivotally supported via 42. The piston rod 39 of the first cylinder device 38 expands and contracts so that the lifting mast 26 having the load receiving base 30 is moved up and down along the fixing mast 15.

Further, underframes on the left and right sides of the cargo receiving table 30.
A pair of mounting pieces 43 are provided so as to be opposed to each other on the upper front side of the vertical portion 32 of 31. Between the pair of mounting pieces 43, a piston rod 46 of the second cylinder device 45 is mounted via a support shaft 44. The upper end portion is rotatably supported, and the lower end portion of the second cylinder device 45 is rotatably supported via a support shaft 48 between the tip end portions of the pair of fixing projections 47. The piston rod 46 of the second cylinder device 45 expands and contracts to raise and lower the mast.
The load receiving base 30 of 26 is adapted to be rotated in the vertical direction about the support shaft 28. In the figure, 49 is a fixed mast on the left and right.
The chute is supported between the upper ends of 15 so as to be vertically rotatable.

Next, the lower parts of the left and right lifting masts 26 as the lifting parts of the cargo receiving table 30 can be engaged and disengaged with the connecting fittings 18 on the lower parts of the left and right fixing masts 15, respectively. First locking devices 50 of each are attached. The first locking device 50 has a base 51 fixed to the lower parts of the left and right elevating masts 26, and the inside parts of the left and right bases 51 are supported at right and left intervals. Plates 52 are erected parallel to each other, and support shafts 54 to which the base portion of the lock body 53 is fixed are rotatably supported between the left and right support plates 52. A handle 55 is formed at one end, and the lock body is rotated by turning the handle 55.
53 is rotated in the vertical direction about the support shaft 54, and the load receiving base 30 is locked by the lock body 53 with respect to the left and right fixing masts 15.

On the upper surface of the lock body 53, there is horizontally formed an engaging portion 56 that engages with and disengages from the lower surface portion 18a of the connecting fitting 18 on the lower side of the fixing mast 15. A guide surface 57 for the lower surface portion 18a of the connecting metal fitting 18 is cut out at the lower end of the connecting metal fitting 18, and a supporting surface 58 supported on the base 51 is horizontal at the lower surface portion following the guide surface 57. It is formed into a shape.

Next, the main frame 2 of the harvester main body 1
Second locking devices 59 for locking the lower end portions of the left and right fixing masts 15 are attached to the left and right rear end portions, respectively. In this second locking device 59, bases 60 are fixed to the left and right upper portions of the rear end portion of the main frame 2, and plate-like lock bodies 61 are respectively mounted on the left and right bases 60. Vertically integrally fixed to each other, a locking recess 62 having an open rear side is formed on the upper rear side of the left and right lock bodies 61. In addition, on the left and right bases 60, support plates 63 are vertically integrally fixed to the left and right lock bodies 61 and spaced apart from each other. Left and right support plates
A hook body 65 is pivotally supported in a vertical direction between a front side portion of the hook body 63 and the front side portion of the hook 63 via a support shaft 64.

The left and right hook bodies 65 are formed with engaging recesses 66 facing the locking recesses 62 of the lock body 61 on the lower rear side, and a handle 67 is integrated at the front end toward the front. Is projected to. Also, the left and right hooks 65
One end portion 68a of the wound spring 68 is locked to the lower portion of the rear end, and the other end portion 68b of the spring 68 is locked to a middle portion of the support plate 63. Then, the hook body 65 is constantly urged downward by the spring 68, and the engaging recesses 66 close the locking recesses 62 from the rear. Further, a stopper-69 for supporting the lowered position of the handle 67 of the hook body 65 is integrally provided horizontally between the lower front ends of the left and right lock bodies 61 and the left and right support plates 63.

Further, a horizontal connecting shaft 70 is integrally fixed to the lower ends of the left and right fixing masts 15, and the left and right connecting shafts 70 are respectively provided in the locking recesses 62 of the left and right lock bodies 61. It is engaged and disengageable and locked by the engaging recesses 66 of the left and right hook bodies 65.
When the lower ends of the left and right fixing masts 15 are locked, the left and right fixing masts 15 are vertically supported.

Next, the operation of the above configuration will be described.

When the piston rod 39 is extended by operating the first cylinder device 38, the left and right lifting masts 26 having the cargo receiving base 30 on which the container 35 is placed rise along the left and right fixing masts 15. Then, the operation of the first cylinder device 38 is stopped when the opening of the container 35 is raised to a position close to the lower side of the chute 49. Then, when the second cylinder device 45 is operated to extend the piston rod 46, the cargo cradle 30 on which the container 35 is placed is rotated upward about the support shaft 28 in the counterclockwise direction in FIG. The operation of the second cylinder device 45 is stopped when the chute 49 is raised and rotated to the position where it is inserted into the container 35.

Next, the drive device provided in the harvester main body 1 is operated to drive the crawler 3, the foliage processing device 4, the conveyor, and the endless moving body 25 of the lifting conveyor 19 in the respective directions in an interlocking manner.

Then, the crawler 3 is driven to drive the harvester, and the dug bodies sequentially dig the onions having foliage in the field. Each of the onions is driven to drive clockwise in FIG. The foliage treatment device 4 is sequentially carried in from the conveyor.

Each onion carried into the foliage treating device 4 is dispersed between the rollers 5a and 5b of each set, one pair in the rotating roller group 5 of the foliage treating device 4, Moreover, these foliage are drawn downward from between the rollers 5a and 5b while being sequentially conveyed backward by the rollers 5a and 5b which are rotated inward in the opposite directions. In this state, they are conveyed to the respective rear ends. Then, each onion is carried in and supported on the guide bodies 6 and 8 from the carry-out end portions of the rollers 5a and 5b, and the foliage of these onions is guided between the guide bodies 6 and 8, and , And is cut and removed by the rotating body 7 and the cutter 9.

Further, the onion from which the foliage has been cut and removed is lifted by being locked by each locking horizontal rod of the endless moving body 25 of the lifting conveyor 19 which is driven to rotate clockwise from FIG. From the upper end of the unloading end via the chute 49
It will be carried in and received in sequence within 35. In this case, since the container 35 is supported in an inclined state in which the chute 49 is inserted, the difference between the receiving and receiving of each onion is small, and the onion can be received without damaging the onion. Then, when a predetermined amount of onion is accommodated in the container 35 in the inclined state, the second cylinder device 45 is operated to contract the piston rod 46,
The cargo cradle 30 on which the 35 is placed is pivoted downward in the clockwise direction in FIG. 1 about the support shaft 28, and the operation of the second cylinder device 45 is stopped while the onion can be accommodated in the container 35.

Therefore, the second cylinder device 45 is sequentially lowered and rotated in accordance with the storage condition of the onion in the container 35, thereby reducing the storage head of the onion in the container 35 without damaging the onion. Sequentially accommodated. Also, depending on the storage condition of the onion in the container 35, the first
By operating the cylinder device 38 and contracting the piston rod 39 thereof, the load receiving table 30 supporting the container 35 is sequentially lowered along the left and right fixing masts 15 via the left and right lifting masts 26. As a result, the head of the onion is reduced in the container 35, and the onions are sequentially stored without damage.

Next, when the container 35 containing the onion is to be unloaded, the first cylinder device 38 is operated to further contract the piston rod 39 thereof, whereby the container 30 on which the container 35 is placed is received. Is further lowered along the left and right fixing masts 15 via the left and right raising and lowering masts 26, and the operation of the first cylinder device 38 is stopped when the container 35 is lowered to a predetermined loading position. And container 35
Are unloaded from the receiving platform 30.

Next, when replacing the foliage processing device 4, for example, each cutter 9 provided at the rear end of the foliage processing device 4, in the left and right first locking devices 50,
By rotating each handle 55, each lock body 53 is rotated about the support shaft 54 toward the connecting fitting 18 at the lower side of the left and right fixing masts 15, and the left and right lock bodies 53 are rotated. By supporting the support surface 58 of the 53 on the base 51, the left and right lock bodies 53 are projected to the lower side portions of the left and right connecting fittings 18, and the engaging portions 56 of the upper surface portion of the lock body 53 are provided. Are projected so as to face the lower portion 18a of the connecting fitting 18. As a result, the left and right elevating masts 26 are slightly raised with respect to the left and right fixing masts 15, and the engaging portions 56 of the left and right lock bodies 53 are engaged with the lower side portions 18a of the left and right connecting fittings 18. Then, the loading platform 35 is set so as not to rise along the left and right fixing masts 15.

In the left and right second locking devices 59, when the respective handles 67 are pushed downward, the respective hook bodies 65 move the springs 68 around the support shaft 64.
The engaging recesses 66 of the left and right hook bodies 65 are disengaged from the connecting shafts 70 of the left and right fixing masts 15, and the left and right connecting shafts 70 are unlocked.

Then, when the first cylinder-device 38 is operated and the piston rod 39 is extended, the left and right fixing masts 15 are
The left and right lifting masts 26 are slightly raised along the
56 is engaged, and the left and right lifting masts 26 of the load receiving base 35 are locked so as not to rise along the respective fixing masts 15.

When the piston rod 39 of the first cylinder-device 38 is further extended, the left and right fixing masts 15 are
Is lifted and rotated upward about a rotation center shaft 14 of the upper ends of the left and right support rods 13 provided on the harvester main body 1, and between the inner ends of the left and right fixing masts 15. The lifting conveyors 19 provided are likewise lifted and rotated, and when these are lifted and turned to greatly open the rear part of the foliage processing device 4, the operation of the first cylinder device 38 is stopped. If necessary, a rod-shaped support body 71 is detachably connected between the left and right second locking devices and the left and right masts that have been rotated upward, and the left and right support masts are connected by the left and right support bodies 71. Support 15. As a result, a wide working space is opened in the rear part of the foliage processing device 4.

[0036]

According to the present invention, when performing maintenance work of a foliage processing device such as replacing the cutter of the foliage processing device,
By locking the elevating part of the load receiving platform with respect to the left and right masts with the first locking device, the load receiving platform can be securely held at a predetermined position of the mast so as not to rise along the left and right masts. Further, the second lock device is operated to unlock the lower end portions of the left and right masts with respect to the harvester main body, and the cylinder device is operated to extend the piston rod, thereby providing a load carrier and a lifting conveyor. The left and right masts can be reliably raised and rotated about the center axis of rotation of the upper ends of the left and right support rods erected on the harvester main body. A wide work space can be reliably ensured, and for this reason, maintenance / inspection / maintenance work of the foliage processing device including replacement of the cutter can be carried out easily and efficiently. In, it is possible to perform these tasks safely.

[Brief description of drawings]

FIG. 1 is a side view of a harvester showing an embodiment of the present invention.

FIG. 2 is a side view showing a cutter mechanism section of the above-mentioned foliage processing apparatus.

FIG. 3 is an enlarged side view showing the first lock device of the above.

FIG. 4 is an enlarged side view showing the second locking device of the above.

FIG. 5 is a side view showing a state in which a rear portion of the upper foliage processing apparatus is opened.

[Explanation of symbols]

 1 Harvester main body 4 Stem / leaf processing device 9 Cutter 13 Support rod 14 Rotating central shaft 15 Mast 19 Lifting conveyor 30 Cargo stand 38 Cylinder device 50 First locking device 59 Second locking device

Claims (1)

[Claims] 1. A foliar treatment device comprising a movable harvester main body, and a cutter provided at an upper portion of the main body of the harvester for conveying a harvested material rearward and cutting a foliage at a rear end thereof. Left and right support rods that are erected opposite to the left and right portions of the harvester main body, and left and right support rods that are rotatably supported in the vertical direction on the upper end portions of the left and right support rods, respectively, via rotation center shafts. A mast and a lifting conveyor provided between the inner parts of the left and right masts to lift the harvested product carried out from the foliage processing device, and a harvested product provided to the left and right masts to be vertically movable and carried out from the lifting conveyor And a cylinder device for moving the load receiving table up and down along the mast, a first locking device provided in an elevating part of the load receiving table for locking the load receiving table with respect to the mast, Harvester body A second locking device, which is provided on the left and right parts and locks the lower ends of the left and right masts to the harvester main body in a disengageable manner, the harvester.